Displaying status of untracked files

[yuujay]

I have airline installed along with gitgutter and fugitive and they are working as expected. However, I have a question with the untracked files. Is there a configuration that I could make use of for setting the status to indicate untracked files? Since, all I am getting now is a status bar that looks like this

I would like to know if there is a way to indicate that the current file is not tracked yet.

[airblade]

You can check the variable b:gitgutter.path: it will be -2 if the file is untracked.

I'm sure there's a way to update airline accordingly :)